无法在JIRA中更新用户

Question

我想通过REST API更新现有的jira用户。 这是我的Java代码。

        JSONObject data = new JSONObject();
        data.put("fullName", "test user");
        String getUser = "https://cloudcodes.atlassian.net/rest/api/2/user?username=newuser";
        URL obj        = new URL(getUser);
        HttpURLConnection conn = (HttpURLConnection) obj.openConnection();
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setDoOutput(true);
        conn.setRequestMethod("PUT");
         String authentication = new String(Base64.encode("AdminEmail" + ":" + "password"));

        conn.setRequestProperty ("Authorization", "Basic " + authentication);
        conn.setReadTimeout(60000);
        conn.setConnectTimeout(60000);

，我得到了错误： java.io.IOException：服务器返回HTTP响应代码：405，URL：https://cloudcodes.atlassian.net/rest/api/2/user?username=newuser